Construction of forms for concrete construction.



G. W. BRANDT. GONSTRUGTION 0F FORMS FOR CONCRETE CONSTRUCTION.

APPLICATION FILBD'DEO. 30, 1910. 1, 1'1 2, 1 1 2.

5 SHEETS-SHEET 1.

Patented Sept. 29, 1914.

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II-IE NORRIS PETERS co PHOTO-L/THOH WASHING'ION. u. 1.,

G. W. BRANDT.

CONSTRUCTION OF FORMS FOR CONCRETE CONSTRUCTION. APPLICATION FILED DEC. 30, 1910.

1 1 1 2, 1 1 2, Patented Sept. 29, 1914;.

5 SHEETSSHEET Z,

WH'NESSES. INVENTOR.

Km Qua W MfQ-QZM THE NORRIS PETERS CO4, FHOTO-LITHO.. WASHINGTON. D. c.

G. W. BRANDT.

CONSTRUCTION OF FORMS FOR CONCRETE GONSTRUGTION.

APPLICATION FILED DBO. 30, 1910.

1, 1 1 2, 1 1 2, Patented Sept. 29, 1914.

5 SHEETS-SHEET 3.

THE NORRIS PETERS 60.. PHoro-LITHQ. WASHINGT N. D C.

WITNESSES. g

G. W. BRANDT. CONSTRUCTION OF FORMS FOR CONCRETE CONSTRUCTION. APPLIOATION FILED DBO. 30.1910.

1 1 1 2, 1 1 2, Patented Sept. 29, 1914.

[HE NORRIS PETERS C0. PHOTO-LIFER}. \VASHINUIUN, u. c.

G. W. BRANDT. GONSTRUOTION OF FORMS FOR CONCRETE CONSTRUCTION.

APPLICATION FILED DEO.30, 1910 1 1 1 2, 1 1 2. Patented Sept. 29, 1914.

5 SHEBTSSHEET 5.

MTMWN INVEN TOR.

WITNESSES.

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'IIIE NORRIS PETERS c0, PnoTuLlrHa, wAsHINGmN 04 c.

To all whom it may concern.- a

UNITED STATES PATENT OFFICE. c

GEORGE w; BRANDT, or BRooKLYn,;Nnw YORK, ASSIGNOR TO MARY E. BRANDT, or

' i i LEONIA, NEW JERSEY.

oonsrrnucrronor ron-lvrsroncono'nn'rn CONSTRUCTION? j 1 Specification. of Letters Patent. I

v Application filed DecemherBO, 1 9 10. SerialNo. 600,205.

Be it known thatl, GEORGE W. BRAN T, a citizen of the United States, residing at 7 92 De Kalb avenue, Brooklyn, in the county of Kings and State of New York, have invented a new anduseful Construction of Forms for Concrete Construction, of which the following is a specification.

My invention relates to the process of holding concrete in continuous (either vertical or horizontal) sectional, adjustable plank forms with series of cores, until. it sets and has for itsobject to render the process more expeditious and damp proof, it being a hollow, air circulating constructionand considerably cheaper, as itrequires less materials and less labor. than the methods now employed. 1 attain these objects .by the mechanism illustrated in the accompanying drawings. In casting concrete in these forms, I employ wood, with seriesof holes through the wood, with steel plates over the holes on one side of each side form. and bolts to pass through the plate and form on the one side and screw into the plate on the outside of the other side form, with wood cores set between the series of bolts.

Figure 1. is a vertical section of a mass of forms locked together. Fig. 2. is an end view through the forms, showing the bolts through and holdingthe sides of forms together. Fig. 3. is aside view of two side forms horizontally locked together. Fig. 4:. is a top view of Fig. 3. forms. Fig.6.: is a top view of a set of forms with doweled pan titions set. Fig. 6. is a vertical sideview of a locked mass of forms setfor vertical casting of concreteformation. Fig. 7 is an end view of Fig. 6. Fig. 8. is aside view :of a single set ofside forms set on a finished hollow course ofv wall (Fig. .9.) ready to cast the second course of wall. Fig. 9. is the end view of Fig. 8., showing an end View of the opposite side andcore. Fig. 1.0. :showsthe end of finished hollow wall (Fig. 11.), before the forms and .cores are removed from the concrete. Fig. 11. is a top view of a ished piece of hollow wall with forms and cores removed. Fig. 12. is an end view ofa finished wall, cast with forms set vertically. Fig. 13. is a top View of a ninety degree angle form with horizontahahd vertical cores partially set. Fig. 14:. 1s a top 'VIGYV of a forty-five degree angle form with horizontal and vertical angle, coresset. Fig. 15.

is a topwiew ofa part of ac irclecorner form w th ;a n1nety. degree angle. Fig. 1.6. is a top view of. a part of a circle corner connected to the regular running forms. Fig. 11s aside of the self-supporting core. Fig. 18. is an end view of the vertical and horizontal core. Fig. 19." is a bottomwiew i of Fig. 17. with horizontal core attached thereto. Fig. 20. is an'end View of the horizontal cores. Fig. 21. is a side viewof the hinged horizontal co-res. Fig.22. is a top view'of circular formation forms. Fig. 23. is a side ylew of an arch formation sprung from piers with all forms removed. (The dotted lines show reinforcing steel workand metal soffit. Fig.2l. is a side View of arch (Fig. 23.).before the. side forms and parti tions to; form piers and arch are removed. The dotted: lines show partitions, also sprung steel and metal soffit from pier. to

Slmllar letters refer to similar parts throughout theseveral views. l

The sldesA; constitute. the main plank body. of forn1s,fits steel platesBLandB. B.

sunken, in flush across the sides of forms and fastened thereto, withits spaced holes CL C. l l

drilled for bolts C. to pass through plate B. and-plank and through the opposite plank form and screwed into the tapped plate B. B. secured to it (Fig. 2.) which holds theplank sides A. to a width apart, to cast the required thickness of concrete. Holes, (Lin sides Afare for partitlon adjustments (Fig. 5.); Drilled steelplateF, similar to B. prejoints of plates. passing the bolts through plate F. thenthrough holes (LC. and securing with a 1001 m onends ofbolts C. after it passes through the opposite side form and tapped plate B. B. and steel plate a the side forms 'A. with the ends turned down in the channel N. on the edge of side forms 18.), also the horizontal hinged core eol vioujsly referred to, .forms. the look over i H. H. attached to the vertical core H. rests on the lower line of bolts G. and intermediate =walls which support it and hold same centrally in and on the intermediate walls (Figs. 9, 10, 11, 17 They are lifted out by steel ringbolts M. secured to cores through steel plates "J.

The horizontal core H. H. is constructed into three (3) parts and secured together by I steel. hinges O. and supported by the center portion .P. of the three parts which is permanently attached to the vertical core H. and the outer ends H. H. resting on the lower line of bolts Cf of the side forms A. is lifted out of the concrete construction with the cores II, "the part P. remaining horizontal, allowing the outer parts H. H. to drop down vertically and clear the intermediate wall.

The angle sides of forms A. are secured at their intersecting points by hinges L. (Figs.

. 1 3," 14 and'15.). The circle corner forms are secured by the metal sheathing R, being sening side forms A. In the forming of an arch by them, when piers are built to the required' height, theforms A. are left in place, bolted to the piers, also'the partitions E., one -01- more side'forrns A. are then placed thereon, as needed for raise of arch centrally and' its height of-finish. The sprung steel S.

is then set inside of forms A., resting on piers and coveredwith metal T. from inside to inside fof foi ns A. to line of piers at springof arch, making support for concrete arch-formation. The dotted lines U. indic'ate'steel reinforcement built in arch, as

, usually required, but has no other meaning ico iieii ofthle -patent may be obtained for in regard to construction of arch. The partitions may be set in any two holes in the side form's,'either the two center holes in the side forms, the twoupper holes, or the two lowerfholes, 'a's may be required to form a I pier, a stop in a running line of Wall, or to make provision for reinforcing irons that may be required to run over any one or more partitions. Y

I'attain angles by hinged forms which will connect on either end of any length of the regular straight forms. I attain circular formation by the part of a circle desired sawed out of wood as-a' form and lined with metal'containing a series of holes that will connecton either end of any running length of'the regular straight "forms with bolts G.

I attain arch formation by using the reinforcing sprung steel resting on a wall or pier inside of the regular forms and covering same with metal or wire to form the soffit which takes the place of a center, as usually done, the reinforcing steel, metal or wire being left in as a reinforcement of the concrete construction. I attain the girder and beam formation from pier to pier or wall to wall by the forms being suspended by any line of bolts resting on the top of the girder or beam, being incased, as would be required; and a plank resting on any line of bolts, as required to form the bottom of the forms. I attain the vertical concrete formation by incasing the already constructed work within the regular forms standing on end locked together, as the regular straight forms, with planks resting against any line of bolts, as may be required to form the other two required sides. I attain the vertical circular formation by plank staves with circular steel plates fastened to the staves with a series of holes and made in two parts and held together with bolts, as the regular forms, using similar drilled plates as locks, as regular straight forms A. (Figs. 3. and 9.2.). I attain the horizontal air circulation by connecting the vertical with the horizontal air chambers at the bottom and top of the constructed work when started and finished, also at every course, as may be desired.

I am aware that, prior to my invention, block molds have been invented to form concrete blocks. I therefore do not claim such a combination broadly, but

I do claim:

In a mold to form a ventilated concrete structure the combination com arising side framings, a core to suspend etween the framings to produce the vertical ventilating shafts, straps across the framing and flanges on the ends of the straps, ring hooks suspending the said core from the said straps, and hinged horizontal extensions on the bottom of said core, the extensions projecting beyond the bottom ends of the core to connect with adjacent horizontal core extensions to :make continuous horizontal passages opening into the vertical shafts.

GEORGE W. BRANDT.

Witnesses:

HOWARD B. MYKRANTZ, ANDREW ROBERTSON.

five cents each, by addressing the Commissioner o't l'atentl.

Washington, D. c." 

